docs: update FAQ (#1143)

* docs(docs-imprv): add additional info

* Update docs/FAQ.md

Co-authored-by: Rik Smale <13023439+WikiRik@users.noreply.github.com>

Co-authored-by: Rik Smale <13023439+WikiRik@users.noreply.github.com>

Author: etroynov

docs/FAQ.md

@@ -6,7 +6,7 @@ $ sequelize init
 ```
 
 ## How can I generate a model?
-Specify model name with `--name` argument. List of table fields can be passed with `--attributes` option
+Specify model name with `--name` argument. List of table fields can be passed with `--attributes` option (comma separated with no spaces at all)
 ``` 
 $ sequelize model:create --name User --attributes name:string,state:boolean,birth:date,card:integer,role:enum:'{Admin,Guest}'
 ```